Algorithm
Problem Name: Python -
In this HackerRank Functions in PYTHON problem solution,
The provided code stub will read in a dictionary containing key/value pairs of name:[marks] for a list of students. Print the average of the marks array for the student name provided, showing 2 places after the decimal.
Example
marks key: value pairs are
"alpha": [20,30,40]
'beta': [30,50,70]
queary_name = 'beta'
The query_name is 'beta'. beta's average score is [30 + 50 +70) / 3 = 50.0
Input Format
The first line contains the integer n, the number of students' records. The next n lines contain the names and marks obtained by a student, each value separated by a space. The final line contains query_name, the name of a student to query.
Constraints
- 2 <= n <= 10
- 0 <=marks[i] <= 100
- length marks of array = 3
Output Format
Print one line: The average of the marks obtained by the particular student correct to 2 decimal places.
Sample Input 0
3
Krishna 67 68 69
Arjun 70 98 63
Malika 52 56 60
Malika
Sample Output 0
56.00
Code Examples
#1 Code Example with Python Programming
Code -
Python Programming
N = int(input())
dictionary = {}
for i in range(0, N):
inputArray = input().split()
marks = list(map(float, inputArray[1:]))
dictionary[inputArray[0]] = sum(marks)/float(len(marks))
print("%.2f" % dictionary[input()])
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